Name variants
![Cymraeg](/Images/flags/small/_Wales.png)
Robert ap William
![Cymraeg](/Images/flags/small/_Wales.png)
Robert ap William d'Aguillon
![Cymraeg](/Images/flags/small/_Wales.png)
Robert Sheriff of Surrey ap William
![Cymraeg](/Images/flags/small/_Wales.png)
Robert Sheriff of Surrey ap William d'Aguillon
![English](/Images/flags/small/gb.png)
Robert FitzWilliam
![English](/Images/flags/small/gb.png)
Robert FitzWilliam d'Aguillon
![English](/Images/flags/small/gb.png)
Robert Sheriff of Surrey FitzWilliam
![English](/Images/flags/small/gb.png)
Robert Sheriff of Surrey FitzWilliam d'Aguillon
![Gàidhlig](/Images/flags/small/_Scotland.png)
Robert MacWilliam
![Gàidhlig](/Images/flags/small/_Scotland.png)
Robert MacWilliam d'Aguillon
![Gàidhlig](/Images/flags/small/_Scotland.png)
Robert Sheriff of Surrey MacWilliam
![Gàidhlig](/Images/flags/small/_Scotland.png)
Robert Sheriff of Surrey MacWilliam d'Aguillon
![International format](/Images/flags/small/un.png)
Robert d'Aguillon
![International format](/Images/flags/small/un.png)
Robert Sheriff of Surrey d'Aguillon
![International format](/Images/flags/small/un.png)
Robert Sheriff of Surrey Williamsson
![International format](/Images/flags/small/un.png)
Robert Sheriff of Surrey Williamsson d'Aguillon
![International format](/Images/flags/small/un.png)
Robert Williamsson
![International format](/Images/flags/small/un.png)
Robert Williamsson d'Aguillon
Gender
Male
Timeline
Birth
Roughly guessed date 1226
Place
![United Kingdom](/Images/Flags/Small/_England.png)
Watton at Stone, Hertfordshire, England, United Kingdom
Death
15 February 1286
Place
![United Kingdom](/Images/Flags/Small/_England.png)
Addington, Greater London, England, United Kingdom